.app .login {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  border: 1px solid black;
  background-color: aqua;
}
.app .login #username,
.app .login #password {
  height: 0.3rem;
  width: 2rem;
  border: none;
  border: 1px solid black;
  border-radius: 0.05rem;
  outline: none;
  margin: 0.1rem;
  padding-left: 0.1rem;
}
.app .login #submit {
  height: 0.3rem;
  width: 0.5rem;
}
